mineral
Hematite
Iron(III) oxide (Fe2O3)
AI-generated identification · may be incorrectHardness of 5.5 to 6.5 on the Mohs scale, metallic to dull luster, steel-gray to black color with a characteristic reddish-brown streak, and trigonal crystal system.
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Physical properties
Hardness of 5.5 to 6.5 on the Mohs scale, metallic to dull luster, steel-gray to black color with a characteristic reddish-brown streak, and trigonal crystal system.
Formation & geological history
Forms in diverse environments including hydrothermal veins, sedimentary deposits, and volcanic settings over millions of years.
Uses & applications
Used primarily as an ore of iron, in pigments, radiation shielding, and tumbled for jewelry and decorative stones.
Geological facts
Hematite is the most important ore of iron on Earth and has been used by humans for prehistoric cave paintings.
Field identification & locations
Easily identified by its distinctive reddish-brown streak and heavy weight relative to its size.
